//
// Created by 刘禹晨 on 16/7/21.
// Copyright (c) 2016 yuchenliu. All rights reserved.
//

#import "Mode.h"

@interface Mode()
@end

@implementation Mode

+ (Mode *)instance {
    static Mode *_instance = nil;
    @synchronized (self) {
        if (_instance == nil) {
            _instance = [[self alloc] init];
        }
    }
    return _instance;
}



@end